/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package org.apache.iotdb.tsfile;

import org.apache.iotdb.tsfile.exception.write.WriteProcessException;
import org.apache.iotdb.tsfile.file.metadata.enums.TSDataType;
import org.apache.iotdb.tsfile.file.metadata.enums.TSEncoding;
import org.apache.iotdb.tsfile.fileSystem.FSFactoryProducer;
import org.apache.iotdb.tsfile.read.common.Path;
import org.apache.iotdb.tsfile.write.TsFileWriter;
import org.apache.iotdb.tsfile.write.record.TSRecord;
import org.apache.iotdb.tsfile.write.record.datapoint.DataPoint;
import org.apache.iotdb.tsfile.write.record.datapoint.LongDataPoint;
import org.apache.iotdb.tsfile.write.schema.IMeasurementSchema;
import org.apache.iotdb.tsfile.write.schema.MeasurementSchema;

import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import static org.apache.iotdb.tsfile.Constant.*;

/**
 * An example of writing data with TSRecord to TsFile It uses the interface: public void
 * addMeasurement(MeasurementSchema measurementSchema) throws WriteProcessException
 */
public class TsFileWriteWithTSRecord {

    public static void main(String[] args) {
        try {
            String path = "Record.tsfile";
            File f = FSFactoryProducer.getFSFactory().getFile(path);
            if (f.exists()) {
                f.delete();
            }

            try (TsFileWriter tsFileWriter = new TsFileWriter(f)) {
                List<MeasurementSchema> schemas = new ArrayList<>();
                schemas.add(new MeasurementSchema(SENSOR_1, TSDataType.INT64, TSEncoding.RLE));
                schemas.add(new MeasurementSchema(SENSOR_2, TSDataType.INT64, TSEncoding.RLE));
                schemas.add(new MeasurementSchema(SENSOR_3, TSDataType.INT64, TSEncoding.RLE));

                // register timeseries
                tsFileWriter.registerTimeseries(new Path(DEVICE_1), schemas);

                List<IMeasurementSchema> writeMeasurementScheams = new ArrayList<>();
                // example1
                writeMeasurementScheams.add(schemas.get(0));
                writeMeasurementScheams.add(schemas.get(1));
                writeMeasurementScheams.add(schemas.get(2));
                write(tsFileWriter, DEVICE_1, writeMeasurementScheams, 10000, 0, 0);
            }
        } catch (Throwable e) {
            e.printStackTrace();
            System.out.println(e.getMessage());
        }
    }

    private static void write(
            TsFileWriter tsFileWriter,
            String deviceId,
            List<IMeasurementSchema> schemas,
            long rowSize,
            long startTime,
            long startValue)
            throws IOException, WriteProcessException {
        for (long time = startTime; time < rowSize + startTime; time++) {
            // construct TsRecord
            TSRecord tsRecord = new TSRecord(time, deviceId);
            for (IMeasurementSchema schema : schemas) {
                DataPoint dPoint = new LongDataPoint(schema.getMeasurementId(), startValue++);
                tsRecord.addTuple(dPoint);
            }
            // write
            tsFileWriter.write(tsRecord);
        }
    }
}
